Mutiple Random Source To Mutiple Respective Destination - Update And Insert

Hello All


Firstly thanks a lot Phil and Jamie on such a helpful article on "Checking to see if a record exists and if so update else insert"

Here is my question


I have about 10 tables and there respective working tables
For examples: A, B, C, D, E.... and WorkA, WorkB, WorkC....

Notes:
1) When I execute a package these work table (Work A, WorkB ...) get populated with certain rows say about 5
2) Its not that all the work table are populated on every execution.
3) Tables A, B, C... have thousands of records in it.
4) Work table is of same structure as there parent table..Like WorkA same structure as A.....
5) The table A and WorkA and as on... are linked with a KeyID

Now I want to build a SSIS package that can
1) Get the the data from these multiple tables(WorkA, WorkB...)
2) Process each row of these tables WorkA, WorkB..
3) Depending upon the KEYID of WorkA., WorkB.. etc Update a Flag colunm of table A, B...where the KeyID is equal to KeyID of Work Table
4) After updating insert that processed row of Work A, WorkB ...into Table A, B..

I can do this if I have one source table and one destination table. Here i have some say 10 randomly source tables to respective random destination .
All I could think of creating 10 different packages as adviced in Jamie's article. But I am sure there might some other alternative.

Can somebody advice me the best practice of doing this. Thanks a lot in advance